If you mean 2x=40 x=20
but if you mean x^2=40 i think its x=80
A) is 5 months
b) is option 1 difference of 40
Answer:
Speed of boat in still water is 26km/hr
Step-by-step explanation:
Let the speed of boat in still water be x and speed of stream by y.
Speed at which it went upstream would be (x-y) and the speed at which it went downstream would be (x+y). According to question x+y=24 and x-y=28. x=26 and y=-2.
Answer:
23 units
Step-by-step explanation:
Use the distance formula: d = ![\sqrt{(x2 - x1)^2 + (y2 - y1)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%28x2%20-%20x1%29%5E2%20%2B%20%28y2%20-%20y1%29%5E2%7D)
Plug in the 2 points:
d = ![\sqrt{(-12 - 11)^2 + (-4 + 4)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%28-12%20-%2011%29%5E2%20%2B%20%28-4%20%2B%204%29%5E2%7D)
d = ![\sqrt{529}](https://tex.z-dn.net/?f=%5Csqrt%7B529%7D)
d = 23
So, the distance is 23 units